Improvement in scroll-gates for water-wheels



tata f M- W W @gluant l (ttiu.

JULIUS H. JONES, OF CHARLTON, -lVIA SSACIIUS'l"lS.

Letters .Patent No. 92,456, lated July 13, 1869.

IMPROVEMENT IN SCROLL-GATES FOR WATER-WHEELS.

The Schedule referred to in these Letters Patent and making part Of the same.

To all whom lt may concern.-

My invention applies more particularly to that classv of horizontal wheels known as turbines, to which the wvater is admitted on all sides, and it is designedto form sluices or water-ways for that purpose, of such form as to give a full, smooth stream to the bucketsat all their various degrees of opening, the stream eorresponding to the depth of wheel or length of bucket all the time. Fig. 1 shows a top view and plan of my invention. A A A are the gates, with a lip, b l) l) b, covering the opening behind them, and the ends a a a made flaring back frein the faces n n n n, against which they close, with a jet, if preferred, at the inner end of the face a, the'gate being shown in dotted lines o inside the ease, and hung on a pivot ats. l

These gates are made in the rim B, surrounding the wheel and of the same depth. At 'C is arim or collar, with connections to each gate, one of which is shown at D. rIhese pivot to eachgate, and the other end hasa spr-i11g-connection to the rim, so that if one gate has any obstruction', the spring yields and allows the others to be closed.

One mode of doing this is shown in fig. 2, the rim being moved by any suitable mechanism; the ilaring end, always forming a taper-way for the water at all degrees of opening,admitsthe water in the best form.

In some cases it may be betterto make the lips b b b move on a circle corresponding to the edge of the rim B, and then connect them to the gates A Aby a link or other suitable mechanism, and, if desired, the.

operating-mechanism may be applied 4through them, and then the whole gates will or may be covered when closed.

I do not claim winged-gates in emnbination with scroll-shutes, as patent-d' in patent No. 22,901, issued in 1859, as such are not new; but

That I claim as new, and desire to secure by Let ters Patent, is 1. The gate A, with its flaring end-shield or guard, and covered inner end, and ways a. a, substantially as described.

2. The described gates, spring-connections, and operating-mechanism, substantially as set forth.

JULIUS H. JONES.

Witnesses:

Il. C. Turman, J. G. ARNOLD. 

